Cobalt International Energy Inc. - 2011-04-05

Commenced a public offering of 27 million shares of its common stock. Net proceeds will be used to fund its capital expenditures and for general corporate purposes.

Morgan Stanley & Co. Inc., Credit Suisse Securities (USA) LLC, Goldman, Sachs & Co., J.P. Morgan Securities LLC and Citigroup Global Markets Inc. are joint book-running managers.